Ka cavitation o ka pump: ka manaʻo a me ka heluʻana
O Howila o ka Cavitation Phenomenon
ʻO ke kaomi o ka wai wai wai o ke kaheʻana o keʻano o ka wai o ka wai ʻO keʻano o ke kahe o ka wai e pili ana i ka mahana. ʻO ke kiʻekiʻe o ka mahana,ʻoi aku ka nui o ke kumu o keʻano. Ke kaomiʻana o keʻano o ka wai maʻemaʻe ma ka mahana o ka lumi o 20 ℃ he 233.8.8.8.8.8. ʻOiai ke kaomiʻana o keʻano o ka wai ma 100 ℃ he 101296pa. No laila,ʻo ka wai hoʻomaʻemaʻe i ka mahana o ka lumi (20 ℃) e hoʻomaka i ka vaporize i ka wā e hāʻule ai ke kaomi i ka 233.8pa.
Ke ho'ēmiʻia ke kaomi o ka wai i ka kaomiʻanuʻu ma kekahi mahana, e kuhi ka wai i ka cavitation. Eia nō naʻe,ʻo ka vapor ma ka'ōpala,ʻaʻole loa i ka moku, akā aia ka hau
I ka manawa i ulu ai nā bubbles i ka wā o ka wana i ke kaomi kiʻekiʻe, ua emi a kā lākou volum a me kā lākou mau barsts. ʻO kēia phenomenon e nalowale ana e nalo i ka wai ma muli o ke ala e kū ai ke ala i kapaʻiaʻo COVITITE.
ʻO ka phenomenon o ka cavitation ma ka pā
I ka wā e hana ai ka pump, ināʻo ka wahi kūloko o kona wahi ākea (ma kahi o ka ma hope o ka paleʻana o ka mea hana. No kekahi mau kumu, i ka wā e hāʻule ai ka ikaika o ka wai i hāʻule i ke kumu o keʻano, e hoʻomaka ana ka wai. Holo kēia mau pōpilikia i mua o nā wai, a i ko lākou hōʻeaʻana i kahi kiʻekiʻe kiʻekiʻe, a hāʻule ke kiʻekiʻe kiʻekiʻe o ke kālaiʻana i nā pōkaki a hiki i keʻano o ke kīkika i nā pua a lewa aʻe a paʻa hoʻi. I ka wā e hoʻopiha ai nā bubble, e hoʻopiha i nā wahi wai e hoʻopiha i ka lua ma ke kiʻekiʻe kiʻekiʻe a hoʻokūkū pū kekahi me kekahi e hana i ka wai wai. E lilo kēia phenomenon i ka pōʻino i ka hōʻino i nā mea i hala i kēia manawa i ka wā e kū ai ma ka paia paʻa.
ʻO kēia kaʻina hana ke kaʻina hana pump.
Ka hopena o nā cavitation pump
Hana a me ka haunaele
ʻO ka hōʻino o Corrosionion i nā mea i hala
Hana hana
Pump cavitation ka hoʻohālikelikeʻana
Ua kapaʻia kekahiʻano hana kīʻaha NPSHR-Pump
ʻO NSPSha-kaʻaeʻana i kaʻaeʻana o ka mea hana i kapaʻiaʻo ia kaʻaeʻana i ka mana cavitation pono, e hāʻawiʻia e ka mea kūʻai aku. ʻO ka mea nui loaʻo NPSHA,ʻoi aku ka liʻiliʻi o ka paila. Ua emiʻo NSPH me ka hoʻonuiʻana o ke kaʻa.
Ka pilina ma waena o NSPHA a me NPSHRL i ka wā e loli ai nā loli
ʻO keʻano helu helu o ka cavitation kamepiula
Hg = PC / ρG-ρ-pv / ρg- [npsh]
[NPSh] -Latation Cavitation eʻaeʻia
[NPSh] = (1.1 ~ 1.5) NPShr
I ka nui o ke kō, e lawe i ka momona o ke kahe, a i ka wā liʻiliʻi, a ua liʻiliʻi ke kahe, e lawe i kahi waiwai liʻiliʻi.
Nā manawa post: Jan-22-2024